taxes Property Tax

School and Appraisal Districts Property Value Study 2013 Report

2013 Confidence Interval Detail
212/Smith
212-909/Chapel Hill ISD

Category Summary

(1)
Category
(1)
Local
Value
(1)
Stratum
Ratio
(1)
State
Value
(2)
Sample
Size
(3)
Total
Parcels

Stratum
Variance
A 146,524,856 0.9920 147,706,508 22 1,902 .019660502
A 148,245,117 0.9813 151,070,128 41 934 .005598429
A 151,686,555 0.9996 151,747,254 44 604 .007764672
A 156,458,475 0.9581 163,300,778 22 318 .021338948
B 18,086,123 0.9647 18,747,925 8 50 .000528513
B 21,122,500 0.8449 25,000,000 4 4 .030358479
E 143,516,161 0.9557 150,168,631 19 2,041 .016166920
F1 18,814,928 0.8280 22,723,343 10 131 .041448224
F1 18,819,705 0.8656 21,741,803 8 43 .066438995
F1 23,789,476 0.9381 25,359,211 7 24 .003872863
F1 17,070,104 0.9912 17,221,655 3 3 .001027433
L1 20,150,435 1.0206 19,743,714 9 113 .001699543
L1 22,186,318 0.8704 25,489,795 6 16 .008633377
L1 10,128,583 0.9971 10,158,041 3 3 .003735719
Random Totals: 916,599,336   950,178,786 206 6,186  
Catg D1 Exception Values: 10,847,960   7,227,950      
Catg B Exception Values: 35,428,075   36,280,000      
Catg L1 Exception Values: 17,312,029   17,312,029      
Total Test Values (4): 980,187,400   1,010,998,765      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 50,549,938

Confidence Interval Values (5)

State Lower Limit: 960,448,827 (State Test Value minus Margin of Error Percent)
Local Test Value: 980,187,400 (Within Confidence Interval)
State Upper Limit: 1,061,548,703 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,136,060,076 (See ISD Summary Worksheet)

Sources:
(1) See Stratified Category Worksheet Reports PTS236, PTS430
(2) Number of parcels sampled by staff
(3) Total Category Parcels from Stratification Report, Appraisal Roll, or Self-report
(4) Includes any parcels in A, B, C, D3, F1, G1, G2, or L1 marked as exception properties
(5) Unstudied categories and sub-categories were not included in the Confidence Interval Values
(6) Includes local value of unstudied property categories and sub-categories